Some more info: Well I hope this is the same problem. We have the problem with newer Firefox versions right now (e.g. 45.0.1), we are using Ubuntu 14.04 though, but I guess the Firefox packages shouldn't differ much. The only difference I see is, that we don't have this problem with all our users, and a new profile seems to fix it, which is a bit different from the "how to reproduce" steps mentioned above.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1527663 Title: firefox 43 Accept-Language header does not follow preferences Status in firefox package in Ubuntu: Confirmed Bug description: on a french firefox, possibly on all non english installs of firefox 43 on Ubuntu 15.10, the Accept-Language header is set to en_US regardless of the language preferences. It started with the upgrade to ff43, and the issue exists event when creating a new profile. How to Reproduce : Create a new profile on a firefox in french, go to any website, Accept-Language HTTP header does not contain "fr" (I could reproduce the bug in a virtualized 15.10) Workaround : about:preferences#content > Languages: choose Change order, click OK Languages: choose (again) Change order back, click OK Now the Accept-Language header is correctly set To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1527663/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

